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143 lines
3.6 KiB
143 lines
3.6 KiB
#!/usr/bin/env bash
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export LC_ALL=C
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set -e -o pipefail
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# Source the common prelude, which:
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# 1. Checks if we're at the top directory of the Bitcoin Core repository
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# 2. Defines a few common functions and variables
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#
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# shellcheck source=libexec/prelude.bash
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source "$(dirname "${BASH_SOURCE[0]}")/libexec/prelude.bash"
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###################
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## Sanity Checks ##
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###################
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################
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# Required non-builtin commands should be invokable
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################
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check_tools cat diff gpg
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################
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# Required env vars should be non-empty
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################
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cmd_usage() {
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cat <<EOF
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Synopsis:
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env GUIX_SIGS_REPO=<path/to/guix.sigs> ./contrib/guix/guix-verify
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EOF
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}
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if [ -z "$GUIX_SIGS_REPO" ]; then
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cmd_usage
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exit 1
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fi
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################
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# GUIX_SIGS_REPO should exist as a directory
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################
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if [ ! -d "$GUIX_SIGS_REPO" ]; then
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cat << EOF
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ERR: The specified GUIX_SIGS_REPO is not an existent directory:
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'$GUIX_SIGS_REPO'
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Hint: Please clone the guix.sigs repository and point to it with the
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GUIX_SIGS_REPO environment variable.
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EOF
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cmd_usage
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exit 1
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fi
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##############
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## Verify ##
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##############
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OUTSIGDIR_BASE="${GUIX_SIGS_REPO}/${VERSION}"
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echo "Looking for signature directories in '${OUTSIGDIR_BASE}'"
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echo ""
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# Usage: verify compare_manifest current_manifest
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verify() {
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local compare_manifest="$1"
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local current_manifest="$2"
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if ! gpg --quiet --batch --verify "$current_manifest".asc "$current_manifest" 1>&2; then
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echo "ERR: Failed to verify GPG signature in '${current_manifest}'"
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echo ""
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echo "Hint: Either the signature is invalid or the public key is missing"
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echo ""
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elif ! diff --report-identical "$compare_manifest" "$current_manifest" 1>&2; then
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echo "ERR: The SHA256SUMS attestation in these two directories differ:"
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echo " '${compare_manifest}'"
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echo " '${current_manifest}'"
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echo ""
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else
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echo "Verified: '${current_manifest}'"
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echo ""
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fi
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}
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shopt -s nullglob
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all_noncodesigned=( "$OUTSIGDIR_BASE"/*/noncodesigned.SHA256SUMS )
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shopt -u nullglob
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echo "--------------------"
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echo ""
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if (( ${#all_noncodesigned[@]} )); then
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compare_noncodesigned="${all_noncodesigned[0]}"
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for current_manifest in "${all_noncodesigned[@]}"; do
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verify "$compare_noncodesigned" "$current_manifest"
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done
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echo "DONE: Checking output signatures for noncodesigned.SHA256SUMS"
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echo ""
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else
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echo "WARN: No signature directories with noncodesigned.SHA256SUMS found"
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echo ""
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fi
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shopt -s nullglob
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all_all=( "$OUTSIGDIR_BASE"/*/all.SHA256SUMS )
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shopt -u nullglob
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echo "--------------------"
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echo ""
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if (( ${#all_all[@]} )); then
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compare_all="${all_all[0]}"
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for current_manifest in "${all_all[@]}"; do
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verify "$compare_all" "$current_manifest"
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done
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# Sanity check: there should be no entries that exist in
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# noncodesigned.SHA256SUMS that doesn't exist in all.SHA256SUMS
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if [[ "$(comm -23 <(sort "$compare_noncodesigned") <(sort "$compare_all") | wc -c)" -ne 0 ]]; then
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echo "ERR: There are unique lines in noncodesigned.SHA256SUMS which"
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echo " do not exist in all.SHA256SUMS, something went very wrong."
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exit 1
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fi
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echo "DONE: Checking output signatures for all.SHA256SUMS"
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echo ""
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else
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echo "WARN: No signature directories with all.SHA256SUMS found"
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echo ""
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fi
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echo "===================="
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echo ""
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if (( ${#all_noncodesigned[@]} + ${#all_all[@]} == 0 )); then
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echo "ERR: Unable to perform any verifications as no signature directories"
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echo " were found"
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echo ""
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exit 1
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fi
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